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Cystiscus
Cystiscus is a taxonomic genus of minute sea snails, marine gastropod mollusks or micromollusks. This genus was placed in the family Cystiscidae by Coovert and Coovert, 1995. Previously the genus was in the family Marginellidae, where it is still placed by many other malacologists. Diagnosis Shell minute to small, white, hyaline; spire immersed to low; lip thickened, smooth or weakly denticulate; external varix absent; siphonal notch absent; posterior notch absent; lacking collabral parietal callus ridge; columella multiplicate, with combined usually 2 to 8 plications plus parietal lirae, first plication usually strong and raised. Mantle smooth, at least partially extending over external shell surface. Shell description Shell minute to small (adult length ). Color white, hyaline; surface smooth, glossy. Shape usually elliptic, obovate, or subtriangular; weakly shouldered. Spire completely immersed to low. Aperture narrow to broad, usually wider anteriorly. Lip slightly to d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Yasawaensis
''Cystiscus yasawaensis'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description The shell can grow to be 2.2 mm in length. Distribution ''Cystiscus yasawaensis'' can be found off the coast of Fiji Fiji ( , ,; fj, Viti, ; Fiji Hindi: फ़िजी, ''Fijī''), officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists .... References Cystiscidae Gastropods described in 2006 Yasawaensis {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Angasi
''Cystiscus angasi'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description The size of the shell attains 1.8 mm. Distribution This marine species was found off Port Jackson Port Jackson, consisting of the waters of Sydney Harbour, Middle Harbour, North Harbour and the Lane Cove and Parramatta Rivers, is the ria or natural harbour of Sydney, New South Wales, Australia. The harbour is an inlet of the Tasman Sea (p ..., Australia. References External links Crosse H. (1870). Diagnoses molluscorum novorum. Journal de Conchyliologie. 18: 301-304 Coovert G.A. & Coovert H.K. (1995) Revision of the supraspecific classification of marginelliform gastropods. The Nautilus 109(2-3): 43-110 Cystiscidae Gastropods described in 1870 Angasi {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Cystiscus
''Cystiscus connectans'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks. Description The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; .... References Cystiscidae Gastropods described in 1870 Cystiscus {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Beqae
''Cystiscus beqae'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks. Description The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; .... Description The size of the shell attains 1.46 mm. Distribution This marine species was found off Beqa Island, Fiji. References External links Wakefield A. & McCleery T. 2006. Descriptions of new species of Pacific Cystiscus Stimpson, 1865 (Gastropoda : Cystiscidae). Part 1: species with banded mantle patterns. Novapex 7 (Hors-série 4): 1-31 Cystiscidae Gastropods described in 2006 Beqae {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Boucheti
''Cystiscus boucheti'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description Distribution This marine species occurs off New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st .... References Cystiscidae Gastropods described in 2003 Boucheti {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Aurantius
''Cystiscus aurantius'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description Distribution This marine species occurs off New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st .... References Cystiscidae Gastropods described in 2003 Aurantius {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Bougei
''Cystiscus bougei'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description The size of the shell attains 1.45 mm. Distribution This marine species occurs off New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st .... References * Boyer F., 2003. The Cystiscidae (Caenogastropoda) from upper reef formations of New Caledonia. Iberus 21(1): 241-272. Cystiscidae Gastropods described in 1917 Bougei {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Aphanacme
''Cystiscus aphanacme'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks. Description The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; .... References Cystiscidae Gastropods described in 1918 Aphanacme {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscidae
Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks. Description The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; the spire is flat to immersed, or low to tall; the protoconch is paucispiral; the lip is thickened, smooth or denticulate; an external varix is present or absent; a siphonal notch is present or absent; a posterior notch is present or absent; the columella is multiplicate, internal whorls cystiscid or modified cystiscid type. Mantle cavity with monopectinate ctenidium and bipectinate osphradium. Proboscis pleurembolic; jaws absent; typical radular sac present. Taxonomy The family was erected by William Stimpson for a single included species based on unusual features of the head and radula. Subsequent authors included this group in the family Marginellidae. Coan (1965) recognized this group as a subfamily, but he did not include such gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, |
Oligogene
Oligogenic inheritance (Greek ὀλίγος – ''ὀligos'' = few, a little) describes a trait that is influenced by a few genes. Oligogenic inheritance represents an intermediate between monogenic inheritance in which a trait is determined by a single causative gene, and polygenic inheritance, in which a trait is influenced by many genes and often environmental factors. Historically, many traits were thought to be governed by a single causative gene (in what is deemed monogenic inheritance), however work in genetics revealed that these traits are comparatively rare, and in most cases so-called monogenic traits are predominantly influenced by one gene, but can be mediated by other genes of small effect. History Around the 1930s/40s, evidence that multiple genes could affect the risk of disease that showed discrete inheritance patterns, due to differences in the age of onset of disease for siblings. The age of onset for sibling pairs was very similar, but between pairs of siblings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Francis Laseron
Charles Francis Laseron (6 December 1887 – 27 June 1959) was an American-born Australian naturalist and malacologist. Early life and education Laseron was born on 6 December 1887 at Manitowoc, Wisconsin, United States of America, to English parents the Reverend David Laseron, and his wife Frances, née Bradley. After relocating temporarily to London in 1888, the family migrated to Australia in January 1891. In 1892 his father was accidentally shot, causing lasting health problems for Rev. Laseron who resigned his post in Sydney three years later and then moved his family to Lithgow, New South Wales where he was given charge of the parish. Charles attended St Andrew's Cathedral School as scholar and chorister and later studied at Sydney Technical College where he was awarded the diploma in geology. He was employed by the Technological Museum in July 1906 and published a series of papers. Australian Antarctic Expedition He was a member of the Australasian Antarctic Expedition un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
